• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical review, D >Hierarchical follow-up of subthreshold candidates of an all-sky Einstein@Home search for continuous gravitational waves on LIGO sixth science run data
【24h】

Hierarchical follow-up of subthreshold candidates of an all-sky Einstein@Home search for continuous gravitational waves on LIGO sixth science run data

机译：全天候Einstein @ Home搜索LIGO第六次科学运行数据的连续引力波的亚阈值候选对象的分层跟踪

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We report results of an all-sky search for periodic gravitational waves with frequency between 50 and 510?Hz from isolated compact objects, e.g., neutron stars. A new hierarchical multistage approach is taken, supported by the computing power of the Einstein@Home project, allowing us to probe more deeply than ever before. 16?million subthreshold candidates from the initial search [LIGO Scientific and Virgo Collaborations, Phys. Rev. D 94 , 102002 (2016)] are followed up in four stages. None of those candidates is consistent with an isolated gravitational wave emitter, and 90%?confidence level upper limits are placed on the amplitudes of continuous waves from the target population. Between 170.5 and 171?Hz, we set the most constraining 90%?confidence upper limit on the strain amplitude h 0 at 4.3 × 10 ? 25 , while at the high end of our frequency range, we achieve an upper limit of 7.6 × 10 ? 25 . These are the most constraining all-sky upper limits to date and constrain the ellipticity of rotating compact objects emitting at 300?Hz at a distance D to less than 6 × 10 ? 7 [ D 100 ? ? pc ] .
机译：我们报告了从孤立的紧凑物体（例如中子星）对频率在50到510？Hz之间的周期性引力波进行全天候搜索的结果。在Einstein @ Home项目的计算能力的支持下，采用了一种新的分层多阶段方法，这使我们能够比以往任何时候都更深入地进行研究。初始搜索中有1千6百万个亚阈值候选人[LIGO科学与处女座合作社，物理学。修订版D 94，102002（2016）]分为四个阶段。这些候选者中没有一个与孤立的引力波发射器一致，目标人群的连续波振幅被置为90％的置信水平上限。在170.5和171？Hz之间，我们将应变幅度h 0的最大约束90％置信上限设置为4.3×10？。 25，而在我们频率范围的高端时，我们达到了7.6×10？ 25。这是迄今为止最具约束力的全天候上限，并将以300？Hz的距离D发射的旋转紧凑物体的椭圆率限制为小于6×10？ 7 [D 100？ ？电脑]。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号